IBM Support

Web Server Plug-in policy for WebSphere Application Server

Technote (troubleshooting)


Which version of Plug-in can be used with which version of WAS?

Resolving the problem

Supported combinations of IBM HTTP Server, WebSphere Application Server, and the WebSphere WebServer Plug-in
There are a variety of issues surrounding support of mixed releases of IBM HTTP Server (IHS), WebSphere Application Server (WAS), and the WebSphere Web Server Plug-in (WAS Plugin). This document only refers to the IBM HTTP Server (powered by Apache) on AIX, HP-UX, Linux, Solaris, Windows, and z/OS (not "IBM i").

In general, the recommended configuration is to use all three components from the same release. However, there are a variety of situations where using other combinations is required.

Note: Customer and product support is only provided when all components in use have a support entitlement.



      WebSphere Application Server uses the following naming scheme: V.R.M.F

    Supported, UnSupported, and other configurations
Supported combinations of the Application Server and WebServer Plug-in

A release (such as 9.0, 8.5, 8.0, or 7.0) of the WebServer Plug-in can be used with the corresponding release and any previous releases of the application server, as long as the application server version (in terms of V.R.M.F) is not more
than two versions older than the WebServer Plug-in.

Any release of WebSphere Application Server Liberty ("Liberty Profile") is supported with any release of the WAS Plug-in from 8.5.5 or later. This include Liberty Profile continuous delivery releases (such as 16.0.0.x or 17.0.0.x) as well as Beta releases.

  • For example, an 8.0 Plugin can front-end servers from 8.0, 7.0, 6.1, and 6.0 whether they're all from a single release or in a mixed cell. Application servers from 8.5 or 8.5.5 would not be a supported configuration, because they are later releases. Similarly, application servers from 5.1/5.0 would not be supported because they are more than two versions (in terms of V.R.M.F) older.

    Examples of N-2 Version support:

Supported configurations of Web Servers and the WAS Plugin

Given a compatible Plugin has been selected based on WAS release requirements, The release (V.R.M.F) of IBM HTTP Server used must match the Plugin release exactly.

Third-party webservers are only a supported configuration if they are explicitly listed in the supporting software documentation for the WAS release.


Unsupported combinations

These are combinations with known technical problems.

Other configurations
Any combination not explicitly addressed above is an "other configuration". These configurations are not tested or recommended.

Other recommendations
There is no required relationship between IHS, Plugin, and WAS fixpack (V.R.M. F) levels, but staying current is strongly recommended. Furthermore, using levels contemporary (but not necessarily identical) with one another is also strongly recommended.


Cross reference information
Segment Product Component Platform Version Edition
Application Servers WebSphere Application Server Plug-in (remote) Install AIX, Linux, Solaris, Windows 7.0, 6.1.1, 6.1, 6.0.1, 6.0, 5.1
Application Servers Runtimes for Java Technology Java SDK

Document information

More support for: WebSphere Application Server

Software version: 6.0, 6.1, 7.0, 8.0, 8.5,

Operating system(s): AIX, HP-UX, Linux, Solaris, Windows, z/OS

Reference #: 1160581

Modified date: 27 September 2016